Stock-based Compensation - Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
|
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
Stock-based compensation expense | $ 10,800 | $ 9,920 |
Research and Development Expense [Member] | ||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
Stock-based compensation expense | 5,670 | 5,031 |
General and Administrative Expense [Member] | ||
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
Stock-based compensation expense | $ 5,130 | $ 4,889 |